Refrigerator



FIG. 1 is a perspective view of a refrigerator showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view thereof showing the state in which interior container boxes have been drawn up to the doors; and,

FIG. 9 is a perspective view thereof showing the state in which the doors have been closed. 

The ornamental design for a refrigerator, as shown and described. 